DEEP-SLOPE STABILIZATION USING LIME PILES

Lime piles have been successfully used in practice in several countries worldwide but their mechanism of operation has not been adequately explained. The literature on the subject has been briefly reviewed and a list of suggested stabilizing processes has been compiled. Programs of experimental work to investigate each process are described and the results are presented. Lime piles, which usually consist of columns of quicklime placed in pre-formed holes in clay soils, draw in water during hydration and expand. No lateral consolidation of the surrounding clay occurs, however, because of the stoichiometry of the hydration reaction. The water loss in the surrounding clay causes an increase in undrained shear strength. The associated pore water pressure reduction, or suction, caused by the hydration reaction is shown to be significant in the short term to increase the stability of the slope and in the long term by overconsolidation of the shear plane. Migration of calcium and hydroxyl ions from the piles has been shown to be limited to less than 30 mm (1.2 in.), as might be expected from considerations of clay liners. The pile itself is shown to have significant strength. The laboratory work has heen supported by the initial findings of a program of field trials.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1994/1440/1440-009.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=DEEP-SLOPE+STABILIZATION+USING+LIME+PILES&author=C.+ROGERS&author=S.+Glendinning&publication_year=1994
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1440, Design and Performance of Stabilized Bases, and Lime and Fly Ash Stabilization. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • ROGERS, CDF
  • Glendinning, S
• Publication Date: 1994

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 63-70
• Monograph Title: Design and performance of stabilized bases, and lime and fly ash stabilization
• Serial:
  • Transportation Research Record
  • Issue Number: 1440
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Calcium oxide; Field tests; Guides to the literature; Hydration; Laboratory tests; Literature reviews; Overconsolidation; Pore water pressures; Slope stability; Soil suction; Undrained shear strength
• Old TRIS Terms: Lime piles; Quicklimes; Test results
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00670366
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Nov 30 1994 12:00AM